I recently read an article for DS challenges. The Cas A SNR was mentioned there and it seems to be in the reach of my scope. But I did not find it in the ST 3 Database. Not in the search nor as an object at the coordinates given.

It isn't no. However if you use the import lists from the Skyhound website (Data manager -> Import shared lists) and look under miscellaneous lists you will find it there and can import that and then it will show. However I am not sure what size telescope and observing site you have but I think you will need a pretty large telescope for this.

Hi Owen,
thanks, I just did the import.
I've read positive observation reports with 16" at good sites in the Alpes. So next time I will try it with my 18" when I am there and the conditions are fine.
cs,
Uli